The printing mode of solder paste printing machine is to use metal scraper, steel mesh and vacuum adsorption to fix the printed board. The speed of the scraper affects the shape and amount of solder paste printing, and also directly affects the quality of solder. Generally, the speed of the scraper is set between 20-80mm / S. in principle, the speed of the scraper needs to match the viscosity of the solder paste. For the solder paste with better fluidity, the faster the scraper speed should be, otherwise it is easy to seep.

Solder paste printing refers to printing the solder paste evenly on the pad of PCB to ensure that the patch components can be firmly combined with the corresponding pad. Solder paste printing machine can be divided into full-automatic, semi-automatic and manual.

The printing of solder paste involves three basic contents - solder paste, SMT steel mesh template and printing press. The reasonable combination of the three is very important to realize the quantitative distribution of solder paste with high quality; Solder paste printing process is related to the success or failure of SMT assembly quality.

The maintenance of the solder paste printer in the running state is called the dynamic maintenance of the solder paste printer. The maintenance of the machine when it is stationary is called static maintenance. Static maintenance is the premise of dynamic maintenance. At the same time, the dynamic operation of the machine can in turn detect the level of static maintenance of the machine.

Impact during the operation of solder paste printing machine. The smaller the impact during the operation of the machine, the more conducive it is to printing, and it can also prolong the service life of the machine. Reducing the printing pressure (pressure in a broad sense) is an important condition to ensure the smooth operation of the machine. On the premise of ensuring the printing quality, the smaller the printing pressure of the visual printer, the better.